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CVE-2026-85171— n8n before 1.123.73 Credential Exposure via Error Logging

Quick assessment

Affected
n8n-io n8n
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

n8n是n8n公司开源的一款支持持续集成与交付的工作流自动化工具。 n8n 1.123.73之前版本、2.35.4之前版本和2.36.2之前版本存在日志信息泄露漏洞，该漏洞源于Strapi、SeaTable和Mailcheck节点通过原始旧版HTTP助手在错误处理之外将解密后的凭据发送到身份验证端点，导致明文机密被持久化在执行错误数据中，任何经过身份验证的用户均可通过REST API读取自身执行中的明文机密，绕过凭据API实施的空白值编辑。

CVSS 7.1 · High EPSS 0.56% · P46

Affected Version Matrix 6

VendorProduct Version RangeStatus
n8n-io n8n < 1.123.73 affected
1.123.73 unaffected
< 2.36.2 affected
2.36.2 unaffected
< 2.35.4 affected
2.35.4 unaffected
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I. Basic Information for CVE-2026-85171

Vulnerability Information
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Vulnerability Title
n8n before 1.123.73 Credential Exposure via Error Logging
Source: CVE Program / CVE List V5
Vulnerability Description
n8n before 1.123.73, 2.35.4, and 2.36.2 contains a credential exposure vulnerability in the Strapi, SeaTable, and Mailcheck nodes. These nodes send their decrypted credentials to the authentication endpoint via the raw legacy HTTP helper outside any error handling, causing the plaintext secret to be persisted in execution error data. Any authenticated user can read the plaintext secret from their own execution through the REST API, bypassing the blank-value redaction enforced by the credentials API.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过日志文件的信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
n8n 日志信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
n8n是n8n公司开源的一款支持持续集成与交付的工作流自动化工具。 n8n 1.123.73之前版本、2.35.4之前版本和2.36.2之前版本存在日志信息泄露漏洞，该漏洞源于Strapi、SeaTable和Mailcheck节点通过原始旧版HTTP助手在错误处理之外将解密后的凭据发送到身份验证端点，导致明文机密被持久化在执行错误数据中，任何经过身份验证的用户均可通过REST API读取自身执行中的明文机密，绕过凭据API实施的空白值编辑。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
n8n-io n8n 0 ~ 1.123.73 -
n8n-io n8n 0 ~ 2.36.2 -
n8n-io n8n 0 ~ 2.35.4 -

II. Public POCs for CVE-2026-85171

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III. Intelligence Information for CVE-2026-85171

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Vendor Advisories for CVE-2026-85171 (2)

Same Patch Batch · n8n-io · 2026-09-03 · 9 CVEs total

CVE-2026-85169 8.7 HIGH n8n before 1.123.73 Remote Code Execution via $fromAI Prototype Leak
CVE-2026-85168 7.7 HIGH n8n before 1.123.73 Remote Code Execution via Git Node
CVE-2026-85165 7.2 HIGH n8n before 2.36.2 Expression Sandbox Bypass via SpreadElement
CVE-2026-85166 7.2 HIGH n8n before 2.36.2 Credential Exfiltration via Workflow Tool Node
CVE-2026-85170 7.1 HIGH n8n before 1.123.73 Local File Read and SSRF via Gmail and Brevo nodes
CVE-2026-85167 6.3 MEDIUM n8n before 2.36.2 Query Injection via Elasticsearch Firestore Nodes
CVE-2026-85172 5.3 MEDIUM n8n before 2.34.1 SSRF via Request Helper URI Validation Bypass
CVE-2026-85173 5.3 MEDIUM n8n before 2.36.2 Missing Authorization via Insights API

IV. Related Vulnerabilities

Same product: n8n
Same vendor: n8n-io
Same weakness: CWE-532

V. Comments for CVE-2026-85171

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